I don’t understand how you reconcile this:
TSO'ed Flight and Navigation instruments are NOT required for Day VFR.
…. with this:
ALL aircraft that plan to enter CTA, MUST have a TSO'd primary radio, but a secondary non approved non TSO'ed is ok. A factory built RAA or GA experimental aircraft for example fitted with a Dynon radio can NOT enter CTA legally (Dynon are currently seeking the required approvals for
this) …
All radio equipment must be TSO'ed for entry into CTA and this includes the transponder, so that affects the dynon transponder too
Did you mean this instead: “TSO’ed Flight and Navigation instruments are NOT required for Day VFR aircraft that do not plan to enter CTA?”